How will Guy stick to the wall?
A traditional Wall of Death would place around 2 to 2.5G on the rider, and that’s the minimum needed to stay on the wall. Guy needs to reach 60mph, which equals 3.5G. But he’s been training hard so it wouldn’t surprise me if he pushed it and went for 80mph. That would then equal around 6.4Gs. Now, to reach either of those speeds on a conventional sized wall with a 10m diameter the rider would be facing 14Gs, which is impossible – the heart wouldn’t be able to pump blood to the brain. So that’s why we’ve had to build a bigger wall, with a 40m diameter to bring the G down to a level his body can handle. Let’s say he does 80mph, which we know equals 6.4G. That means that he will feel 6.4 times his actual weight. So, assuming he weighs 80kg, he’d feel like he weighs 512kg and if the bike is 300kg on the ground then it will be 1.9 tonnes of metal flying around the wall.